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- Enter a name for the input variable.
- Double click at the field and select a map by browsing or by selecting a map from previous models. You can also use results from previous models by linking the maps in the Project Explorer.
- Name your output map and fill out the equation. Check if the equation is valid (when the equation is not valid an exclamation mark will be given or an error is given in the messages window)
The user interface will then look like the picture below:
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